Vim li cas qhov chaw nres tsheb sensors nres ua haujlwm (yog vim li cas, kuaj mob, kho)
Txheem
Parktronic yog ib qho kev pab tsim nyog thiab tseem ceeb rau cov pib tshiab thiab cov neeg tsav tsheb uas paub txog. Lub kaw lus pab kom tsis txhob muaj kev sib tsoo nrog cov teeb meem thaum ua qhov chaw nres tsheb manoeuvre. Feem ntau, cov neeg tsav tsheb tshiab tsis pom cov ncej, siab curbs thiab lwm yam teeb meem thaum thim rov qab.
Txhawm rau tiv thaiv cov neeg tsav tsheb los ntawm cov xwm txheej tsis zoo, muaj chaw nres tsheb sensors lossis chaw nres tsheb radars. Cov no yog cov khoom siv hluav taws xob thiab ib ntus lawv ua tsis tiav rau ntau yam laj thawj.
Raws li txoj cai no, cov cuab yeej siv yooj yim kuj tseem ua haujlwm - lub suab nrov nrov rau kev nuv ntses, nrog rau cov chaw nres tsheb rau cov neeg tsav tsheb.
Hauv lub sensor, koj tuaj yeem pom lub phaj piezoceramic. Nws oscillates ntawm ultrasonic frequencies, zoo li tus hais lus hauv lub suab. Ultrasound tsuas yog siv vim nws yooj yim dua rau siv, tsis zoo li tib lub xov tooj cua tsis zoo. Tsis xav tau antennas, specifications thiab kev pom zoo.
Cov phaj no yog tus kav hlau txais xov transceiver. Chav tswj nws tus kheej txuas lub phaj mus rau lub tshuab hluav taws xob ultrasound thiab rau lub receiver.
Tom qab tsim lub teeb liab ultrasonic, thaum nws pib txav mus, lub phaj ua raws li tus txais. Lub thaiv ntawm lub sijhawm no twb kwv yees lub sijhawm ntawm lub teeb liab txav thiab nws rov qab los.
Electromagnetic chaw nres tsheb sensors tau teem caij sib txawv, tab sis lub hauv paus ntsiab lus tsis txawv ntawm classic radar. Ntawm no, ib daim kab xev tshwj xeeb aluminium yog siv los ua ib lub sensor. Daim kab xev no yuav tsum tau muab ntsia rau tom qab ntawm lub bumper.
Qhov sib txawv tseem ceeb ntawm qhov chaw nres tsheb electromagnetic yog tias lawv tsis ua haujlwm tsuas yog thaum lub tsheb txav los yog thaum muaj teeb meem txav. Cov cuab yeej tsis teb rau qhov kev ncua deb ntawm qhov kev cuam tshuam, tab sis rau kev hloov pauv ntawm qhov kev ncua deb.
Lub ntsiab malfunctions ntawm chaw nres tsheb sensors
Ntawm cov malfunctions tseem ceeb ntawm cov cuab yeej yog:
Kev sib yuav. Qhov no yog qhov tshwm sim, tshwj xeeb tshaj yog thaum koj xav tias feem ntau ntawm cov lus pom zoo ntawm kev ua lag luam yog tsim nyob rau hauv Suav teb. Qhov teeb meem no tuaj yeem daws tau los ntawm kev xa rov qab cov chaw nres tsheb sensors rau tus muag lossis cov chaw tsim khoom;
Cov kab mob tsis raug, sensors los yog daim kab xev ntawm cov ntsiab lus ntawm nws installation mus rau lub bumper;
Control unit malfunctions - Qhov no yog ib qho teeb meem tsawg tsawg. Cov chaw tswj hwm ntawm cov chaw nres tsheb zoo tshaj plaws yog nruab nrog lawv tus kheej qhov kev kuaj mob thiab yog tias muaj teeb meem, tus neeg tsav tsheb yuav tau txais cov lus lossis qee yam teeb liab;
Teeb meem nrog sensors los yog daim kab xev vim av, plua plav, ya raws. Ultrasonic sensors tuaj yeem ua tsis tau txawm tias muaj kev cuam tshuam me ntsis ntawm pob zeb.
Daim kab xev yuav tsum tau ntxuav tas li, uas nws yuav tsum tau dismantled. Lub ultrasonic sensor tsis tshwj xeeb yog ntshai av thiab ya raws. Tab sis ya raws nyiam mus sau thiab ces lov tes taw lub caij;
Tswj thaiv chaw nres tsheb sensors feem ntau tsis ua hauj lwm vim av thiab dej. Feem ntau, luv luv tau kuaj pom ntawm kev txiav txim siab;
Lwm qhov yuam kev yog thaiv. Qhov teeb meem yog tsawg heev. Qhov no tuaj yeem tso cai thaum lub sijhawm txhim kho qhov system ntawm lub tsheb.
Diagnostics thiab kho txoj kev
Lub luag haujlwm tseem ceeb ntawm qhov chaw nres tsheb radar yog qhia rau tus neeg tsav tsheb txog kev cuam tshuam tom qab lossis pem hauv ntej ntawm lub tsheb.
Yog tias lub cuab yeej tsis tso tawm ib qho teeb meem lossis tsim cov teeb meem nrog qhov tsis raug, koj yuav tsum nkag siab qhov ua rau thiab tshem tawm lawv, tab sis ua ntej nws tsim nyog ua qhov kev kuaj mob dav dav.
Kev ntsuas qhov ntsuas pa
Yog hais tias lub radar ua hauj lwm ua ntej, tab sis dheev nres, thawj kauj ruam yog mus xyuas qhov mob ntawm lub ultrasonic sensors - lawv tej zaum yuav nyob rau hauv av los yog hmoov av. Thaum ntxuav cov sensors, kev saib xyuas tsis yog tsuas yog rau cov ntsiab lus ntawm lawv tus kheej, tab sis kuj mus rau qhov chaw mounting. Nws yog ib qho tseem ceeb uas lub sensor mounting muaj kev ruaj ntseg.
Yog tias kev ntxuav tsis ua haujlwm, ces koj yuav tsum xyuas kom meej tias cov khoom ua haujlwm. Kev kuaj xyuas qhov no yog qhov yooj yim heev - tus neeg tsav tsheb yuav tsum qhib lub qhov hluav taws xob, thiab tom qab ntawd kov txhua lub ntsuas nrog tus ntiv tes. Yog tias lub sensor ua haujlwm, ces nws yuav vibrate thiab tawg. Yog tias tsis muaj dab tsi tawg thaum kov nrog tus ntiv tes, ces lub sensor hloov mus rau ib qho tshiab. Qee zaum cov sensors tuaj yeem kho.
Yog tias siv tus ntiv tes nws tuaj yeem txiav txim siab qhov twg ntawm cov sensors ntawm lub bumper tsis ua haujlwm, tom qab ntawd ua ntej yuav ua qhov hnyav dua, nws tsim nyog kom qhuav lub caij kom zoo. Qee zaum, tom qab ziab tag, cov sensors pib ua haujlwm. Yog tias qhov no tsis tshwm sim, tom qab ntawd koj tuaj yeem tshawb xyuas cov khoom nrog lub multimeter.
Lub sensor muaj hluav taws xob tiv tauj - qee cov qauv muaj ob thiab qee qhov peb hu. Sab laug ntawm feem ntau cov ntsiab lus - "ntau". Lub tester tau hloov mus rau qhov ntsuas qhov ntsuas. Ib qho kev sojntsuam txuas nrog rau "ntau", thiab qhov thib ob - rau qhov kev sib cuag thib ob.
Yog hais tias lub cuab yeej qhia tau hais tias qhov tsis kam yog siab tshaj xoom thiab tsis sib npaug rau infinity, ces lub sensor nyob hauv kev ua haujlwm. Nyob rau hauv txhua rooj plaub, lub sensor yog faulty thiab yuav tsum tau hloov.
Koj tuaj yeem tshawb xyuas cov xaim nrog lub multimeter. Txhawm rau ua qhov no, xyuas tag nrho cov xov hlau uas lub sensor txuas nrog rau chav tswj. Yog tias pom muaj qhov qhib lossis lwm yam ua haujlwm tsis zoo ntawm cov hluav taws xob hluav taws xob, ces yuav tsum tau hloov cov xaim hluav taws xob rau ib qho sensor tshwj xeeb.
Control unit diagnostics
Chav tsev muaj kev ruaj ntseg tiv thaiv los ntawm ya raws thiab av thiab tsis tshua muaj tsis ua hauj lwm - nws yog ntsia nyob rau hauv cov neeg nrog caij compartment, thiab tag nrho cov xaim los ntawm cov sensors txuas nrog nws siv nyob ntawm tej los yog wirelessly.
Thaum muaj teeb meem, koj tuaj yeem tshem tawm cov ntawv luam tawm ntawm lub rooj tsavxwm thiab pom qhov muag pom - yog tias cov capacitors puas lossis cov resistors pom, ces lawv tuaj yeem hloov tau yooj yim nrog cov analogues.
Txheeb xyuas qhov chaw nres tsheb metallized radar daim kab xev
Raws li rau metallized tapes, txhua yam yog ntau yooj yim. Cov kab xev muaj qhov yooj yim tshaj plaws, yog tias tsis yog cov khoom siv thaum ntxov - malfunctions tsuas yog tshwm sim vim kev puas tsuaj rau lub cev.
Tag nrho cov txheej txheem kuaj mob raug txo kom muaj kev kuaj pom zoo. Nws yog ib qho tsim nyog yuav tsum tau them sai sai rau cov teeb meem me me - khawb, tawg.
Yog tias qhov kev ncaj ncees ntawm daim kab xev tsis tawg, nws raug nquahu kom nrhiav qhov ua rau muaj qhov tsis zoo nyob qhov twg, vim tias daim kab xev tsis muaj dab tsi ua nrog nws.
Yuav ua li cas kom tsis txhob tawg ntawm qhov chaw nres tsheb sensors yav tom ntej
Txhawm rau kom tsis txhob muaj teeb meem nrog qhov chaw nres tsheb radar, nws yog ib qho tseem ceeb uas yuav tsum tau saib xyuas cov xwm txheej ntawm cov sensors. Yog hais tias muaj av nyob rau hauv cov txheej txheem, lawv yuav tsum tau muab ntxuav kom huv si tam sim ntawd. Tib yam mus rau noo noo.
Ntxiv nrog rau kev txhim kho kom raug, kev hloov kho kuj tseem yuav tsum tau ua. Yog hais tias lub sensors rhiab heev, lub cuab yeej yuav txawm hnov mob nyom. Yog tias, ntawm qhov tsis sib xws, nws qis dhau, ces lub cuab yeej yuav tsis pom lub pob zeb loj lossis lub rooj zaum.
